Questions tagged [shared-lock]

According to wikipedia: Shared locks are sometimes called "read locks" and exclusive locks are sometimes called "write locks". Can you explain the reasoning behind the terms "shared" and "exclusive"?

std::shared_mutex can provide an exclusive lock like std::mutex. Plus it extends the synchronization capabilities by allowing the parallel read-only accesses to the multiple threads. Under the hood the number of machine instructions might be lesser…

I am seeing this error in my RDS logs in Postgresql. Id column is Primary Key in my table. I also logged the queries in server site and seen that both statements have different IDs. Do you have any idea how can I fix this ? Process 3095 waits for…